Perfect For Germinating Small Seed Before Potting On.black 48 Cell Tray Designed To Fit In Our Propagator. 6 Trays Will Fit On Our Water Tray.trays Have Letters & Numbers Down The Side To Help Identify The Cell.uv Resistant & Re-usable Year After Year.tray Size L 18cm X W 15cm X H 3cm.cell Size 2cm X 2cm